diff --git a/targets/RT/USER/lte-ru.c b/targets/RT/USER/lte-ru.c
index 6b7c3448b63fb8dd9092e1cde354a67c5bd03650..b225e54a0c1728d45c403c3c91d9252213d6840d 100644
--- a/targets/RT/USER/lte-ru.c
+++ b/targets/RT/USER/lte-ru.c
@@ -1693,7 +1693,7 @@ static void* ru_thread( void* param ) {
   // set default return value
   thread_top_init("ru_thread",0,870000,1000000,1000000);
 
-  LOG_I(PHY,"Starting RU %d (%s,%s),\n",ru->idx,eNB_functions[ru->function],eNB_timing[ru->if_timing]);
+  LOG_I(PHY,"Starting RU %d (%s,%s),slave:%d\n",ru->idx,eNB_functions[ru->function],eNB_timing[ru->if_timing], ru->is_slave);